Experimental demonstration of ARC-BBBE in peanut producing areas of the Yangtze river basin
Peanut production in our country constantly suffers from the risk of Aspergillus flavus infection and aflatoxin pollution,especially in peanut producing areas along Yangtze River Basin. Based on the preliminary devel-opment of the microbial agent ARC-BBBE by the team,the demonstration technology of ARC-BBBE peanut pro-duction was carried out in four provinces (Hubei,Hunan,Jiangxi and Sichuan) in the peanut producing areas of Yangtze River Basin in 2022. The research results showed that:in the peanut producing areas of the Yangtze River Basin,the inhibition ratio of Aspergillus flavus abundance in soil by ARC-BBBE ranged from 36.87% to 94.70%,with an average inhibition ratio of 63.02%. At the same time,ARC-BBBE could enhance the nitrogenase activity,increase the number and weight of peanut nodules,and increase the biomass of peanut plants. The yield increase range of peanut was 7.23%-53.85%,and the average yield increase rate was 20.58%. Comprehensive demonstra-tion results:applying ARC-BBBE to peanut can be used as a cultivation technology to increase peanut yield per unit area,improve peanut productivity and guarantee the healthy development of peanut industry. It is strongly sug-gested to further expand the demonstration area.
Arachis hypogaea Linn.ARC-BBBEpeanut producing area of the Yangtze River BasinAspergillus flavusaflatoxinnitrogenase activity of peanut nodules